Who is Avchen Knechtmann from Welcome to the Monkey House and what is their importance?

Avchen is Heinz's wife. She has already given birth to a child that died in the relocation camp in Germany. Avchen grew up, like Heinz, in a concentration camp. Heinz adores her. Avchen has a difficult labor, which takes over twelve hours and involves complications. It is Avchen, who, at the end of the story, offers Heinz a ray of hope in the bleak world he has experienced. She is joyful and awestruck at the arrival of her child, and brings Heinz's awareness back to the enormity